diff --git a/gnu/dist/gdb/include/ansidecl.h b/gnu/dist/gdb/include/ansidecl.h
index 9a7c5777ff2e..aef39134d972 100644
--- a/gnu/dist/gdb/include/ansidecl.h
+++ b/gnu/dist/gdb/include/ansidecl.h
@@ -146,7 +146,9 @@ So instead we use the macro below and test it against specific values.  */
 #define PTRCONST	void *const
 #define LONG_DOUBLE	long double
 
+#ifndef PARAMS
 #define PARAMS(ARGS)		ARGS
+#endif
 #define VPARAMS(ARGS)		ARGS
 #define VA_START(VA_LIST, VAR)	va_start(VA_LIST, VAR)